Mounting prism-lights



(No Model.)

H. P. BELGHBR.

MOUNTING PRISM LIGHTS.

No. 586,228. Patented July 13, 1897.

UNITED STATES PATENT. OFFICE.

HENRY F. BELCHER, OF NEW YORK, N. Y., AssIeNoR TO THE LUXFER PRISMPATENTS COMPANY, OF CHICAGO, ILLINoIs.

MOUNTING PRISM-LIGHTS.

SPECIFICATION forming part of Letters Patent No. 586,228, dated July 13,1897.

Applic ation filed April 19, 1 8 9 7.

To all whom it may concern.-

Be it known that I, HENRY F. BELCHER, a citizen of the United States,residing at New York, in the county of New York, State of New York, haveinvented certain new and useful Improvements in Mounting Prism-Lights,of which the following is a specification.

My invention relates to mounting prismlights to form completeprism-plates, and has for its object to provide convenient means forthis purpose, so as to avoid margins on the prism-plates.

My invention is illustrated in the accompanying drawings, wherein Figurel is an elevation of a prism-plate. Fig. 2 is a perspective View of asingle prismlight. Fig. 3 is a cross-section.

Like parts are indicated by the same letter in all the figures.

A is the frame or sash; B B, the prismlights, having prisms.

O O are the warps which preferably run from side to side of the frame orsash.

D D are the ties which preferably are equal in length only to the widthof the prism-light.

E E are the disk-like keys which project from the ends of the ties, soas when the warps are placed therein, as indicated by a small section inFig. 2, the parts are held together at the corners. The prisms atthecorners are undercut, as indicated at F and G, to make room for thesekeys to be let into the Serial No. 632,704. (No model.)

glass. The parts when thus assembled may be electroglazed together, andby this means an almost perfect distribution of the prisms across thesurface of the plate is made. The parts of the grid may be built intogether, beginning at one end and slipping the parts together, thedisk-like keys fitting into their respective slots'as the Work isassembled. The whole may then be electroglazed.

I claim 1. A prism plate comprising a series of prism-lights, a grid orframe comprising bars which pass in opposite directions between theprism-lights, and disk-like keys, said prisms slotted at their bases andat the corners of the prism-lights to receive such keys, and thus holdall the parts securely in position.

2. A prism plate comprising a series of prism-lights, a grid or framecomprising bars which pass in opposite directions between theprism-lights, and disk-like keys, said prisms slotted at their bases andat the corners of the prism-lights to receive such keys and thus holdall the parts securely in position, and a mass of electrically-depositedmetal in and about the metal portions of such grid to hold the partssecurely together.

HENRY F. BELCHER,

Witnesses:

DONALD M. CARTER, BERTHA C. SIMS.

